Data-aided frequency estimation for PSK signaling in frequency-selective fading

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A new data-aided frequency estimator is introduced for phase-shift keying signals transmitted over frequency-selective fading channels. This estimator is developed based on a maximum likelihood criterion. It assumes the use of a special class of pilots, called near-i.i.d. (independent identically distributed) sequences, with impulsive fourth-order moments, By the help of such pilots, the proposed method can estimate frequency offsets without the need for channel information. The pilots of GSM and IS-136 mobile communication systems have been observed as are near-i.i,d., and statistical analysis indicates that the proposed estimate is almost unbiased if the pilot is near-i,i.d, The advantage of the proposed estimator over conventional methods is demonstrated via computer simulation.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2001-07
Language
English
Article Type
Article
Keywords

SINGLE-FREQUENCY; BURST; DETECTORS

Citation

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, v.19, no.7, pp.1408 - 1419

ISSN
0733-8716
URI
http://hdl.handle.net/10203/11640
Appears in Collection
EE-Journal Papers(저널논문)
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